(c) Exceptions
(1) Reasonable cause
No penalty shall be imposed by this section on any person for any failure which is shown to be due to reasonable cause and not to willful neglect.
(2) Inability to correct previous failure
No penalty shall be imposed by this section on any failure by a person if such failure is attributable to a prior failure which has been penalized under this section and with respect to which the person has made all reasonable efforts to correct the failure.
(3) Pre-1983 failures
No penalty shall be imposed by this section on any person for any failure which is attributable to a failure occurring before January 1, 1983, if the person has made all reasonable efforts to correct such pre-1983 failure.
Amendments
1986—Pub. L. 99–514 substituted “section 6047(d)” for “section 6047(e)” in section catchline and in subsec. (a).
Effective Date of 1986 Amendment
Amendment by Pub. L. 99–514 effective, except as otherwise provided, as if included in the provisions of the Tax Reform Act of 1984, Pub. L. 98–369, div. A, to which such amendment relates, see section 1881 of Pub. L. 99–514, set out as a note under section 48 of this title.
Effective Date
Section effective Jan. 1, 1985, see section 334(e)(3) of Pub. L. 97–248, set out as a note under section 3405 of this title.
Plan Amendments Not Required Until January 1, 1989
For provisions directing that if any amendments made by subtitle A or subtitle C of title XI [§§ 1101–1147 and 1171–1177] or title XVIII [§§ 1800–1899A] of Pub. L. 99–514 require an amendment to any plan, such plan amendment shall not be required to be made before the first plan year beginning on or after Jan. 1, 1989, see section 1140 of Pub. L. 99–514, as amended, set out as a note under section 401 of this title.